Disabled symbol checking by default.

This feature still needs some work to be totally robust and it makes the tool not generate bindings by default so disable it for now.

src/Generator/Options.cs

@@ -32,7 +32,7 @@ namespace CppSharp
 
             OutputDir = Directory.GetCurrentDirectory();
             Libraries = new List<string>();
-            CheckSymbols = true;
+            CheckSymbols = false;
 
             GeneratorKind = GeneratorKind.CSharp;
             GenerateLibraryNamespace = true;

src/Generator/Utils/TestsUtils.cs

@@ -59,7 +59,6 @@ namespace CppSharp.Utils
             options.OutputDir = Path.Combine(GetOutputDirectory(), "gen", name);
             options.SharedLibraryName = name + ".Native";
             options.GenerateLibraryNamespace = true;
-            options.CheckSymbols = false;
             options.Quiet = true;
             options.IgnoreParseWarnings = true;